Roy F. Riascos Castaneda, MD
NPI 1265516512ActiveIndividual· Radiology, Diagnostic Radiology· Galveston, TX
Radiology, Diagnostic Radiology (MD) with Ut Physicians, practicing in Galveston, Texas. Medicare paid $28,222 for services to 443 patients in 2024. Bayer Healthcare LLC was the largest of 4 companies reporting payments in 2025, $2,155 in all, mostly consulting fees. Lists Baptist Beaumont Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1265516512 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 24, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | FTL41240 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Diagnostic Radiology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 443 |
|---|---|
| Services billed | 732 across 34 procedure codes |
| Paid by Medicare | $28,222 |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Diagnostic Radiology |
Medical group
- Ut PhysiciansHouston, TX · 1,765 clinicians
Hospital affiliations
- Baptist Beaumont HospitalBeaumont, TX
- Memorial Hermann - Texas Medical CenterHouston, TX
- Memorial Hermann Hospital SystemHouston, TX
Industry payments (Open Payments)
- 2025$2,155 · 4 payments from 4 companies
- 2024$540.58 · 9 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare LLC | $2,013 | 1 |
| Siemens Medical Solutions USA, Inc. | $79.01 | 1 |
| Ge Healthcare | $38.00 | 1 |
| Teleflex LLC | $24.78 | 1 |
What the 2025 payments were for
- Consulting Fee$2,013 · 1 payment
- Food and Beverage$141.79 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 75 diagnostic radiologists in Galveston · All diagnostic radiologists in Texas